Recherche avancée

Sur d’autres sites (8922)

• avformat_open_input return value, error code on NaCl Module

  7 février 2016, par Jar

  I’m trying to port FFmpeg into my NaCl module.

  So far, my module linked ffmpeg and SDL libraries.

  It already can play YUV format video which is directed load into memory and copy into YUVOverlay buffer (it’s very easy).

  Now, I want to use ffmpeg to decode video, but when I call the function avformat_open_input it returns -5 when input is URL string, such as rtmp:// or mmsh:// ; it returns -1052488119 when input is file name, such as /saved/tmp (I mount the file system - html5fs).

  ---

  There are some questions :

  1. What means of -5 and -1052488119 ?
  2. If file can’t open by avformat_open_input, is it possible the input type is from buffer not from file name or url string ?

  ---

  If I’m not clearly about my question or description, you can tell me.
  If you are doing the same thing or having the same problem, we can discuss together.

  Thanks,
  Jar

• ffmepg binarys can't be implemented in the code

  2 janvier 2016, par yoko

  I am using ffmpeg and C# in my project. I want to write the frames I have imported into a new video. The Problem is, as soon as I want to create a new instance of the VideoFileWriter class, which is delivered by the AForge.Video.FFMPEG namespace, I get a FileNotFoundException (while runtime) :

  System.IO.FileNotFoundException" in System.Windows.Forms.dll

  So, I have researched, and some sourced claim that you need not only to import the dll’s into your project, but also in your output folder(like this one)
  I did it, it did not help either.

  I have already taken a look, I have imported all dll’s into my project, and I have set up their location in the PATH-Variables (And yes, restarted.)

  The Codeline, which is throwing the Exception is the following

  VideoFileWriter writer = new VideoFileWriter();

  anyone else had this Problem or knows a solution ?

• Pure C-Code of x264 of ffmpeg

  21 septembre 2015, par Codec Guy

  I am doing some hardware implementation on Ratecontrol of FFMPEG. I am using x264 Encoder, here I am not able to find the C-Code implementation of this function intra_mbcmp_x3_8x8c.

  I tried to trace it back wards, but there is only assembly implementation of the code. Can some body please guide to the Pure C-implementation of the latest x264.

  It would also be helpful, if someone helps me in disabling x86 flags in FFMPEG, so that I will be able to run the pure C implementation.
  Note:I have checked a similar question here.
  But I was not able to get my answer.